Mixer dispenser for gypsum or cement - has injection of pigment contg. water into pure water before mixing

摘要

The mixer dispenser machine dispenses a mixture of a solid or powdered component, pref, gypsum, a liquid, pref. water, and an additional component, pref. a pigment. The machine comprises two liq. sources, one of which supplies pure water while the other supplies pigment entraining water. The latter is injected into the pure water in a given volumetric ratio immediately before the pure water is added to the solid or powdered component. The appts. for adding pure water may include discharge or throughflow control, e.g. a flow meter with floating indicator member, located upstream of the point on injection of the pigment entraining liq.